Description
Cone NS 29/32 extension is a precision ground joint cone with elongated stem for standardised laboratory glassware assemblies. Produced to NS 29/32 taper dimensions in accordance with DIN 12249 and finished to PRECISO quality, the component has an outer diameter of 26 mm, an overall length of 150 mm and a wall thickness of 2,0 mm. These cones with extension allow reliable length adjustment and connection between apparatus parts that use interchangeable ground joints. Supplied in packs of 10 pieces from manufacturer Witeg, each unit has a net weight of 0,048 kg. The geometry supports secure mating with matching NS 29/32 sockets in distillation trains, reaction setups and vacuum lines commonly used in chemical and analytical laboratories. Dimensional consistency to the DIN standard ensures interchangeability across compatible glassware systems. The extended form factor is especially useful when additional reach or clearance is required between jointed components while maintaining a dependable seal. Suitable for research, teaching and routine laboratory work that relies on NS ground joint connections.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 10 pc(s)
- Joint size: NS 29/32
- Standard: DIN 12249
- Quality: PRECISO
- Diameter: 26 mm
- Length: 150 mm
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Distillation & extraction glassware
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Distillation heads, adapters & columns
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Questions about ST-Cones ST 29/32 skirted
What is this article?
ST-Cones ST 29/32 skirted is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

